Which subatomic particle is the lightest?

(a) neutron

(b) proton

(c) electron

(d) all of the above

(obviously not the last one, I guess)

In an isolated system: O A. total (PE + KE) is unchanged. KE remains the same. O c. matter flows in and out. PE remains the same.

Calculate the percent composition of calcium chromate - CaCrO4.

Select the best answer for the question. 1. The two proposed plans for the Constitution agreed on A. having three branches of government. B. having one president. C. having two houses of Congress. D. an elected judiciary.

What it the chemical equation for sugar with potassium nitrate?

The electron affinity of Bi is - 94.6 kJ and the value for At is - 280 kJ. What is the approximate electron affinity for Po?

In 1901, Thomas Edison invented the nickel-iron battery. The following reaction takes place in the battery. Fe (s) + 2 NiO (OH) (s) + 2 H2O (l) Fe (OH) 2 (s) + 2 Ni (OH) 2 (aq) How many mole of Fe (OH) 2, is produced when 5.35 mol Fe and 7.

As you move from left to right across the periodic table, the atomic numbers increase decrease stay the same are random

Use the octet rule to predict the formula of the compound that would form between fluorine and iodine, if the molecule contains only one fluorine atom and only single bonds are formed.

64.0 grams of Sulfur Dioxide absorbed 5.00 kJ of heat and immediately evaporated. With this information, calculate its molar enthalpy of vaporization in units kJ/mol.

Which of these is not a biomass source? A) Sun B) Manure C) Wood chips D) Paper